When starting car tonight heard this kind of loud thud before ignition...everything normal, no lights came on. Car was parked flat surface, tires facing front.
Anyone heard this noise before ?

Also, starting seems to be a little shaky, not a smooth powerful start up, kind of stuttery, but once ignition, runs fine.
Just curious

 

I feel and hear weird things all the time when I start the car or turn it off. I don't know what they are but as long as it runs im not going to worry about it